Rotary die press



March 19, 1929. M. OXENHANDLER ROTARY DIE PRESS Filed Oct. 5, 1926 2 Sheets-Sheet llllll W A I. MMX m? MW v I Q WM. "M 1 v .lill ILHJ MWAA/AAAAMWA/WAAN 3 x E k u INVENTOR- Jilorrus Oscenhanclber l wr m r WITNESSES My Y BY y:

ATTORNEYS March 19, 1929. M. OXENHANDLER 9 ROTARY DIE PRESS Filed Oct. 5, 1926 E v Q -55 I 2 Sheets-Sheet 2 MEL! INVENTOR. Jlorrl/s Oxenhandler i Patented Mar. 19, 1923 1 1,706,319 PATENT. or icE.

MORRIS OXENHANDLER, OF BROOKLYN, NEW YORK.

ROTARY DIE PRESS.

Application filed October 5, 1926. Serial No. 139,742 r This invention relates to processes for cutting, stamping, embossing or printing, and has particular reference to a d ie'press which is especially designed for cutting, stamping, or embossing heavy stock, such as cardboard or the like. I

Heretofore presses of this type, have generally operated upon the princlple of the Gordon printing press whereby the dle supports are fulcruined and moved toward each 'hther or the stock supportand die are s1m1 larly moved toward each other. This principle necessarilyrequires considerable power, limits the speed OfOPQItltlOH and hence production, makes forun'due vibration and im:

pairs registration.

r I a r lhe present invention compiehends a press of the character set forth in which the die support or one of the die supports 1s reciprocatory and the other d e support or stock support is of the multlfaced rotary type to successively dispose the faces supporting the stationary die or the stock registry with the movable or reciprocating die.

The invention furthermore aims includes a multifaced non-reciprocatory rtary member and a driven reciprocatory coacting die support with coacting means carried by said elements for drlvlng and rotating the rotary member from the reciprocating member. 7 v I More specifically the mean'sfor dr v ng the rotary member from the driven reciprocatory member includes a cam roller and cam groove, said cam groove including offset portions corresponding to the number of faces on the rotary multifaced member, which al-j lows for relative movement of the reciprocating member to the non-reciprocating member after the faces are in parallel relation', and which cam grooye also includes means for limiting the rotation of the rotary member to'rotation in one direction.

The invention il urthermore contemplates a press of the character set forth which is comparatively simple in its construction and mode of operation; compact, whereby the same occupies a minimum amount of space; inexpensive to produce and install, and' which is highly eflicient in its use.

VViththe above recited and other objects in view, reference ishad to the following specification and accompanying drawings in which there exhibited one exampleor em to provide a press of the character set forth which;

bodiment of the invention which is in no way intended as a limitation upon the scope of the appended claims as it is to be clearly understood that variations and modifications which properly fall within the scope of said claims may be resorted to when found expedient.

In thedrawings v Figure 1 is a side view of a press constructed in accordance with the invention; Fig. 2 is a transverse sectional view therethrough taken approximately on the line 2-2 of Fig. 1;

Fig. 3 is a fragmentary sectional view taken approximately on the line 8 -3 of Fig. 2;

n Fig. at is a fragmentary detail sectional" view taken approximately on the line -14c of 1s a fragmentary perspective View Fig. 5 of the rotary non-reciprocating member;

Fig. 6 is a diagrammatic side view.

Referring to the drawings by characters ofreference, the press includes aframe including laterally spaced side members 10--10 provided at their upperends with alined bearings 1111' in which a crank shaft 12 is journaled, the side members below the bearings 11 having substantially vertical guides13 within which a cross head 14- is mounted for reclprocatlon. The crank shaft is provided with an offset crank portion 15 which is connected by a connecting rod 16 to a cross head 14 for reciprocating the cross head upon rotation of the crank shaft-'12, which crank shaft has connected therewith a suitable driving pulley 17. r The cross head constitutes a'support for a suitable'cutting, stamping or embossing die 18 which is attached to its lower face.

Mounted on a transverse shaft 19 in the frame 'ls'a rotary non-rec procating multifaced drum20, which drum or bed member presents a plurality of substantially flat faces 21 for supporting either a coacting die or the stock to be cut, stamped, embossed or printed. In order to revolve or rotate the drum so as to successively dispose theface 21 a plane parallel to the under face of the cross head 14, a'jcam'groove 22 is formed on one. orboth end walls of the drum and a cam roller or rollers 23 are each carried by The cam ber of drum faces 21 and disposed at an projecting offset 26 and the juncture of the outer end of each portion 24 25 is formed With a radial outwardly projeating offset 27. The inner offsets 526 allovvfor the final movement of the crosshead toward the faces 21 vvhile the drum is at marina while said t'a ces' are parallel iv'iththe' under face of the cross head. The offsets 27 constitute means which peim-i'tsthe cross head to move so the outer limit of its stroke While the diuiir is temporarily rest and prior to the engagement of the cam roller in thenext succeeding groove portion2a. In order to positively prex'ient r'etr grade movement of theditiin' arid to insure movement of the same m te direction only, aspiring-pressed abutment 28 is providedin the cam groove at the juncture of the portions 2 1 and 25 With each other and at a'poi'iit immediately in advance of the offsets 26 and 27. The spring-pressed abutments are formed with ineli "ed or clam faces 29" which allow the cam roller t'o'ride over the abutments for depressing the same Within the recesses 30 formed in tile" end Walls of the drum coincident with the caiii grooves,

In" order to lock and hold the drum in a fi'n ed position during the final advancement of the cross head toward the faces, the cross head is provided with keeper lugs 31 engageable-in keeper recesses 32 in" the end Walls of the drum. In Order to alloiv for adjustments in the stroke of the cross head to compensate for; variations in the thickness (if the stock being? operated upon, the cross head is adjustably connected to the link 16 by means of an el'einent33 in which the .wrist pin- 3% is mounted, which element 33 provided. with slotted portions 35. Bolts 36 extend through the slots and are anchored in the cross head. The element 33 has" sjviveled therein an adjusting screw 37 WllTCl'l engages in a threaded socket 38 1n the cross head. In order to compensate for this adjustment the cam roller arms 39 are ad ustably connected to the cross head by adjusting screws 40 eitending' tliipiigli threaded bearing lugs 41 in the cam roller arms 39.

In use and of ation, the operator feeds the stock on to the faee 21 of the drum imnie'diately preceding the face which is disposed in the path of movement of the die member and as the die member and cross h'ea'disreeiproeated, the drum is iotated toare the cross head carrying the face with thesto'ck supe mposed thereon ihto position whereby upon move en of the cross head toward said facethe keeper lugs 31 engage in; the keeper reee' 3 2 to lot a cifiu lm l against rotation while the die member is begagement, the cam roller engages with the Walls of tlie angular portion 25 of the grooves to'agaln impart rotary movement to the drum. As the cam roller advances toward the outer end of the portion 25, it engages the inclined or cam'i'ac e 29 of the s l aring-pressed abutment 28, depressed and rides beyond said abutment and enters the outer radial offset 27. When the change of direction of the stroke of the cross head occurs, the cam roller is shunted into the next adjacent angular portion 245 of the cam grooves, due to the fact that the abutment element 28 insures movement in this direct-ion. v V V Having thus described my invention, I claim: 7 I

'1. In a die press, mechanism for imparting intermittent rotation to a inultifaced non-reciprocatory rotary membenfrom a driven reciproeatory' member, said mechanism consisting of a cam roller on one of said members and a cam groove formed in the other member Within which the roller engages, said cam groove having angularly disposed portions corresponding in number to the number of faces on the rotary member. a

2. In a die press, mechanism for imparting intermittent rotation to a inultifaced' non-reciprocatory rotary memberttrom a driven reciprocatory member, said mechanism consisting of a cam roller on one of said members and a cam groove formed in the other member W1th1n WhlCh the roller engages, said cam groove having angularly disposed portions corresponding in number to the number of faces'on the non-reciprocatory rotary member, and alternate rotary inner and outer oiiisets at the juncture of the angular portions to permit oi portional strokes of the reciprocatory member While the rotary member is at rest.

3. In a die press, mechanismtor impart- 'ing intermittent rotation to a multitaced non-reciprocatory rotary member from a driven reciprocatory member," said mechm nism consisting of a ca-m roller on one of said members and a cam groove formed in the other member Within which the roller engages, the cam groove having angularly disposed portions corresponding to thenumher of raceson the non-reciprocatory rotary member, the cam grooves adjacent the jiincture of the angularly disposed portions having spring-pressed depressible abutments oooperating With the cam roller to prevent retrograde movement of the rotary member and to insure rotation of the rotary member in one direction only. I

4. In a die press, mechanism for imparting intermittent rotation to a multifaced non-reciprocatory rotary member from a driven reoiprocatory member, said mechanism consisting of a cam roller on one of said members and a cam groove formed in the other member within which the roller engages, the cam groove having angularly disposed portions corresponding to the number of faces on the rotary member and alternate radial inward and outward offsets at the juncture of the. angular portions to permit of portional strikes of the reciproca stroke of the reoiprocatory member toward 25 the rotary member.

MORRIS OXENHANDLER. 

